Stage 2 - 2 Way 4.5-inch (114mm) Dolby Atmos® Surround Sound Loudspeaker Engineered at our renowned Acoustic Engineering Centre of Excellence in Northridge, California, the 240H compact multi-purpose speaker exemplifies versatility as a Stage 2 speaker. It can easily be configured as a Dolby Atmos enabled add-on or as a wall-mounted elevation or surround loudspeaker with a simple switch. The 240H incorporates a 2-way design featuring Next Generation patented High-Definition Imaging (HDI™) waveguide geometry, a 1-inch (25mm) anodized aluminium dome tweeter, and a 4.5-inch (114mm) polycellulose ribbed cone woofer. General: Type: Dolby Atmos® Surround Sound Loudspeaker System Low Frequency Driver: 4.5-inch (114mm) Polycellulose Ribbed Cone High Frequency Driver: 1-inch (25mm) Anodized Aluminum Waveguide: Next Generation HDI™ Recommended Amplifier Power: 20-150W Frequency Response ± 6dB: 85Hz-25kHz Sensitivity @ 1M, 2.83V: 87dB Nominal Impedance: 6 Ohms Crossover Frequencies: 1.6kHz Enclosure Tuning: Sealed Finish: Espresso or Latte Dimensions: Dimensions (HxWxD): 176mm x 180mm x 270mm Product Weight: 4.6 kg Shipping Weight: 10.4kg Shipping Units of Measure: Pair